Afrique du Nord (2) grotte (2) Afrique (2) Mesolithic period (2) Human beings (2) Africa, North (2) grotte (2) spectacle (1) recherche (1) représentation (1) papier (1) littoral (1) information (1) évolution (1) équipement (1) enrichissement (1) datation (1) côte (1) Dating (1) Identification (1) Antiquities, Prehistoric (1) Shell beads (1) Debate poetry (1) Technique (1) Will (1) Social sciences (1) Signs and symbols (1) Signs and signboards (1) Research (1) Representative government and representation (1)